Brake Masters left with no brakes ,all the lug nuts came off the left rear wheel duals they said o well kingman, Arizona

went to brake master to have my brakes fix,they told me i needed mastercyl ok they put on one. said hadeonley a have half a pedal and let me go. got home with no breakes called them they came out and check it out found that i had no brakes. took it backi to them next day, they said rear brakes are low. ok  next day on wayto kingman the rearwheel  lug nuts came loose and the all fost lost the wheel i could have been killed call them they said they always torque them down so why did they come off. again they we torque them but they came off. they didn't want to talk to me anymore. so i told them what i though of them asses -------------- if you want to here more call me